package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

//文件复制：将一个文件中的数据放到另一个文件中
public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("zhy.jpg");
        FileOutputStream fos = new FileOutputStream("zhy_cp.jpg");

        long start = System.currentTimeMillis();
        byte[]data = new byte[1024*10];
        while ((fis.read())!=-1){
            fos.write(data);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕！耗时"+(end-start)+"ms");


        fis.close();
        fos.close();


    }
}
